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Leather coating composition and preparation method thereof

A technology of leather coatings and compositions, which is applied in lignin coatings, leather surface treatment, antifouling/underwater coatings, etc., can solve the problems of environmental protection, poor embossing and setting, and complicated operations, so as to reduce production costs and improve production efficiency. Adhesive force, easy operation effect

Active Publication Date: 2014-04-09
高峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing leather coatings that are directly used for the second layer of leather and the first layer of poor leather are divided into two categories: ① wet-process products, wet-process products have good film formation, good air permeability, resistance to twists and turns, and good shaping, but solvent-based products Large, not environmentally friendly, and this type of production requires special wet production equipment, and the operation is complicated; ②Water-based scraping products, this type of product has good filling performance, but the overall film formation of the leather surface is inconsistent, the leather surface is rough, and the hiding power is low. Insufficient, insufficient filling, poor embossing and shaping, intolerance to twists and turns

Method used

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  • Leather coating composition and preparation method thereof
  • Leather coating composition and preparation method thereof

Examples

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Effect test

Embodiment 1

[0022] A kind of leather coating composition, this leather coating composition is directly used in two-layer leather leather sofa leather, comprises following component by weight percentage: acrylic resin 20%; Lignocellulose 10%; Silicon dioxide 5%; Feel 5% of wax; 8% of wax; 3% of foaming agent; 0.5% of antioxidant; 0.5% of curing agent; 1% of neutralizing agent; 2% of dispersant; 2% of wetting agent; %; essence 0.5%; hydroxyethyl cellulose 2%; water 38%.

[0023] This leather coating composition is directly used in two-layer leather embryo sofa leather, and its preparation method is:

[0024] ①Put water into the dispersion kettle, heat up to 50°C, then add bactericide, essence, leveling agent, wetting agent, dispersant and acrylic resin, and stir evenly;

[0025] ②Under continuous stirring, slowly add lignocellulose, silicon dioxide, wax, hand feeling agent and foaming agent, and keep stirring for 60 minutes to make them evenly dispersed in the system;

[0026] ③Under cont...

Embodiment 2

[0029] A kind of leather coating composition, the coating composition that is directly used in the coating composition of two-layer leather shoe upper leather, comprises the following components by weight percentage: acrylic resin 25%; Lignocellulose 10%; Silicon dioxide 10%; Hand feeling 2% wax; 12% wax; 1% foaming agent; 2% antioxidant; 3% curing agent; 2% neutralizing agent; 5% dispersant; 3% wetting agent; 1% leveling agent; defoamer 1%; fungicide 0.5%; essence 0.2%; hydroxyethyl cellulose 2%; water 20.3%.

[0030] The leather coating composition is directly used for two-layer leather shoe upper leather, and its preparation method is:

[0031] ①Put water into the dispersion kettle, heat up to 55°C, then add defoamer, bactericide, essence, leveling agent, wetting agent, dispersant and acrylic resin, and stir evenly;

[0032] ②Under continuous stirring, slowly add lignocellulose, silicon dioxide, wax, hand feeling agent and foaming agent, and keep stirring for 90 minutes to...

Embodiment 3

[0036] A leather coating composition, which is directly used for the first layer of poor leather embryo box leather, comprises the following components in weight percentage: 30% of acrylic resin; 8% of lignocellulose; 7% of silicon dioxide; 5% of hand feeling agent; Wax 15%; antioxidant 2%; curing agent 1%; neutralizer 1%; dispersant 2%; wetting agent 2%; leveling agent 2%; defoamer 1%; %; Hydroxyethylcellulose 0.5%; Water 22%.

[0037] The leather coating composition is directly used for the first layer of poor leather embryo luggage leather, and its preparation method:

[0038] ①Put water into the dispersion kettle, heat up to 52°C, then add defoamer, bactericide, flavor, leveling agent, wetting agent, dispersant and acrylic resin, and stir evenly;

[0039] ②Under continuous stirring, slowly add lignocellulose, silicon dioxide, wax and hand feeling agent, and keep stirring for 80 minutes to make them evenly dispersed in the system;

[0040] ③ Under continuous stirring, add...

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Abstract

The invention belongs to the field of leather coating, and particularly discloses a leather coating composition and a preparation method thereof. The leather coating composition comprises acrylic resin, wood cellulose, silica, a feeling agent, wax, a foaming agent, an antioxidant, a curing agent, a neutralization agent, a dispersant, a wetting agent, a leveling agent, a defoaming agent, a sterilizing agent, essences, hydroxyethyl cellulose and water. The preparation method comprises the following steps: adding the components in three steps under a stirring condition, uniformly mixing the components, filtering and packaging. The leather coating composition prepared by the method disclosed by the invention is a waterborne environmentally friendly material, has good physical properties such as excellent adhesive force, fillibility, settability, covering power, air bubble forming, winding resistance and scraping resistance. The leather coating composition has high combination degree with leather fibers, and after leather is ironed and pressed by a plate, a surface formed by the coating is smooth, does not become thick, resists winding and has good settability, good breathability and good handfeel; and the leather coating composition can be directly used for coating good two-layer leather blank and bad head layer leather blank.

Description

technical field [0001] The invention belongs to the field of leather coatings, and in particular relates to a leather coating composition and a preparation method thereof which are directly used for the second layer of leather and the first layer of poor skin. Background technique [0002] Leather coatings that protect and beautify leather and prolong its lifespan. With the introduction of the concept of environmental protection, there are higher requirements for leather coatings, and there is a trend of developing from single type to compound type, from solvent type to water-soluble. Existing leather coatings are generally divided into three categories: bottom finish, middle finish and top finish. The three finishes have different performance requirements for the finish. The bottom finish is the basis of the entire coating. During the leather finishing process , the quality of its performance has a particularly heavy impact on the performance of leather. [0003] The exis...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D197/02C09D123/30C09D101/26C09D7/12C09D5/14C14C11/00D06M15/263D06M15/05D06M11/79D06M15/227D06M15/09D06M13/262D06M13/148D06M15/643
Inventor 高峰
Owner 高峰
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